ARM: Fix bug in x264_quant_4x4x4_neon

Regression in r2273.
Merge branch 'master' into kaudio-avx
Merge branch 'kaudio-avx' into lsmash-avx
Fix compilation since AVCODEC_MAX_AUDIO_FRAME_SIZE was removed.
Merge branch 'kaudio-avx' into lsmash-avx